Cleaning compositions for solid surfaces – auxiliary compositions – Auxiliary compositions for cleaning – or processes of preparing – Textile softening or antistatic composition
Reexamination Certificate
2000-12-29
2003-04-01
Hardee, John (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Auxiliary compositions for cleaning, or processes of preparing
Textile softening or antistatic composition
C510S520000, C510S524000
Reexamination Certificate
active
06541444
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a softener composition.
BACKGROUND ART
Most of the commercially available merchandise as a softener composition for fibers are compositions comprising a quaternary ammonium salt containing two long-chain alkyl groups in one molecule and being typified by a di(long-chain alkyl) dimethyl ammonium chloride.
However, the quaternary ammonium salt described above suffers from the problem that, when residues thereof after a treatment is discharged into the environment such as a river, most of them are accumulated without biodegradation.
As an improved product against the above-mentioned problem, N-methyl-N,N-bis(long-chain alkanoyloxyethyl)-N-(2-hydroxyethyl) ammonium methyl sulfate, N,N-dimethyl-N,N-bis(alkanoyloxyethyl) ammonium chloride or the like is commercially available. Although the biodegradability of these products are improved as compared with that of the quaternary ammonium salt described above, the improved products cannot be said to be a basis for sufficiently satisfying a softening effect.
DISCLOSURE OF INVENTION
Accordingly, the object of the present invention is to provide a softener composition which contains a softening base having an excellent softening effect and satisfactory biodegradability.
That is, the softener composition of the present invention contains a base having a satisfactory biodegradability and has an excellent softening effect.
The present invention provides a softener composition comprising
(A) a nonionic compound which has at least one C
5-36
alkyl or alkenyl group and an amide bond but contains no dissociative group of amino or carboxyl group; and
(B) at least one member selected among
(B-&agr;) cationic or ampholytic surfactants having one C
5-36
alkyl or alkenyl group or one optionally substituted aryl group and
(B-&bgr;) amino compounds having at least one C
5-36
alkyl or alkenyl group and salts of the compounds; and it also provides a sheetlike softener for a dryer which is obtained by impregnating the softener composition into a sheetlike carrier.
Then, the softener composition of the present invention includes a composition wherein the component (A) has at least one C
5-22
alkyl or alkenyl group and the component (B) is (B-&agr;) and has one C
7-22
alkyl or alkenyl group or one optionally substituted aryl group.
PREFFERABLE MODES FOR CARRYING OUT THE INVENTOIN
The component (A) of the present invention is a nonionic compound which has at least one C
5-36
alkyl or alkenyl group and an amide bond but contains no dissociative group of amino or carboxyl group; it is preferably a nonionic compound represented by the formula (I), (II) or (III) (hereinafter, referred respectively to as the nonionic compound (I), (II) or (III)) or a mixture thereof; and it is more preferably the nonionic surfactant (I) or (II):
wherein R
1
represents a linear or branched C
5-35
alkyl or alkenyl group, R
2
represents a hydrogen atom or —COR
1
, R
3
represents a hydrogen atom, a C
1-3
alkyl or hydroxyalkyl group, —(AO)
m
R
2
or —A—NHCOR
1
, A represents an ethylene or propylene group and each of n and m represents a number selected from 1 to 10;
wherein each of R
1
and R
2
has the same meaning as defined above, R
4
represents a hydrogen atom, a C
1-3
alkyl or hydroxyalkyl group, B represents a group in which amino and hydroxyl groups are excluded from a C
3-6
amino polyol and q represents an integer of 2 to 5, provided that q•R
2
's are the same or different; and
wherein each of R
1
and R
4
has the same meaning as defined above and R
5
represents a linear or branched C
1-36
alkyl, alkenyl, hydroxyalkyl or hydroxyalkenyl group.
For example, the nonionic compound (I) is synthesized by amidation of a secondary amino alcohol such as diethanol amine, diisopropanol amine, N-methylethanol amine, a diamino alcohol such as aminoethylethanol amine, an amino alcohol such as ethanol amine with a fatty acid or a lower alkyl ester thereof, and if necessary addition of an alkylene oxide such as ethylene oxide and propylene oxide thereto, followed by esterification of the resultant product. In the occasion, the amidation and esterification may be carried out at the same time. The degree of acylation in total is preferably 1 to 2.5 and more preferably 1.5 to 2.3. The number of carbon atoms in an acyl moiety in the fatty acid or the lower alkyl ester thereof used here is preferably 6 to 36 and more preferably 8 to 18. For example, a fatty acid from a coconut, a tallow fatty acid, a hardened (or hydrogenated) tallow fatty acid, stearic acid from a palm or hardened stearic acid from a palm, or a lower alkyl ester thereof is particularly preferable. Further, a fat and/or oil such as a coconut oil, a tallow, a hardened tallow, a palm-stearin and a hardened palm-stearin may also be used.
The nonionic compound (I) is preferably a compound represented by the following formula (Ia), (Ib), (Ic) or (Id) or a mixture thereof:
wherein each of R
1
and n has the same meaning as mentioned above.
For example, the nonionic compound (II) is synthesized by amidation of an amino polyol such as amino propanediol, N-methylglucamine with a fatty acid or a lower alkyl ester thereof, followed by esterification of the resultant product. The degree of acylation in total is preferably 1 to 2.5 and more preferably 1.5 to 2.3. The fatty acid or the lower alkyl ester thereof for use is preferably the above-mentioned one.
The nonionic compound (II) is preferably a compound represented by the following formula (IIa) or (IIb) or a mixture thereof:
wherein R
1
has the same meaning as mentioned above.
For example, the nonionic compound (III) is synthesized by amidation of a long-chain fatty acid with a long-chain amine. The number of carbon atoms in the long-chain amine is preferably 6 to 36 and more preferably 8 to 18. For example, the long-chain amine is preferably a coconut amine, a tallow amine, a hardened tallow amine, a palm-stearin amine or a hardened palm-stearin amine, in particular. The fatty acid or the lower alkyl ester thereof for use is preferably the above-mentioned one.
The component (B) of the present invention is preferably a cationic surfactant represented by the formula (IV) (hereinafter, referred to as the cationic surfactant (IV)) or ampholytic surfactant represented by the formula (V) (hereinafter, referred to as the ampholytic surfactant (V))
On the other hand, the component (B) of the present invention is preferably an amino compound represented by the formula (VI) or (VII) (hereinafter, referred respectively to as the amino compound (VI) or (VII)), a salt thereof or a mixture thereof:
wherein R
6
represents a C
1-3
alkyl or hydroxyalkyl group, R
7
represents a linear or branched C
5-36
alkyl or alkenyl group, —(C
p
H
2p
)—Y—COR
8
or —(C
p
H
2p
)—CO—Y—R
9
, p represents an integer of 1 to 6, Y represents O or NH, R
8
represents a linear or branched C
5-35
alkyl or alkenyl group or an optionally substituted aryl group, R
9
represents a linear or branched C
6-36
alkyl or alkenyl group or an optionally substituted aryl group and X
−
represents an anion, provided that 3•R
6
's are the same or different;
wherein each of R
6
and R
7
has the meaning as mentioned above, E represents —R
10
—Z or O, R
10
represents a C
1-6
alkylene or hydroxyalkylene group and Z represents —COO, —OSO
3
, —SO
3
, —OPO
3
or —PO
3
;
wherein R
11
and R
12
are the same or different and each of R
11
and R
12
represents a hydrogen atom, a C
1-3
alkyl, hydroxyalkyl or aminoalkyl group or —(AO)nH, each of A and n has the meaning as mentioned above and R
13
represents a C
5-36
alkyl or alkenyl group into which an ester-, amide- or ether- linkage (or bonding group) maybe inserted (or which may be interrupted by an ester-, amide- or ether- linkage);
wherein R
14
represents a C
5-36
alkyl or alkenyl group into which an ester-, amide- or ether- bonding group may be inserted, R
15
represents a hydrogen atom, a C
1-3
alkyl, hydroxyalkyl or aminoalkyl group.
The cationic surfactant (IV) includes a long-cha
Hatayama Yoshio
Kaneko Yohei
Katoh Tohru
Nishimoto Uichiro
Ohtawa Yasuki
Hardee John
Kao Corporation
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